/Engine/Plugins/Enterprise/DatasmithImporter/Source/DatasmithImporter/Public/ObjectElements/DatasmithUObjectElements.h
Create a new variant and add it to the parent variant set
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Datasmith | Scene") [UDatasmithVariantElement](API\Plugins\DatasmithImporter\ObjectElements\UDatasmithVariantElement) * CreateVariant ( [FName](API\Runtime\Core\UObject\FName) InElementName )